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16 - GB
Operation Manual - GB
13. Obligatory ČSN EN standards for the design and installa-
tion of boilers
ČSN EN 303-5 - Central heating boilers using solid fuel
ČSN 06 0310 - Central heating, design and installation
ČSN 06 0830 - Safety devices for central heating and hot water preparation
ČSN EN 73 4201 - Designing of chimneys and flues
ČSN EN 1443 - Chimney structures - General requirements
ČSN 06 1008 - Fire safety of local appliances and sources of heat
ČSN EN 13501-1 - Fire classification of construction products and building structures - part 1
ČSN EN 1264-1 - Floor heating - Systems and components - Definitions and marking
ČSN EN 1264-2 - Floor heating - Systems and components - Heat output calculation
ČSN EN 1264-3 - Floor heating - Systems and components - Design
ČSN EN 442-2 - Heating elements - Tests and their evaluation
Standards for evaluation of conformity and other technical standards:
ČSN EN ISO 12100-1:2004/A1:2009, ČSN EN ISO 12100-2:2004/A1:2009, ČSN EN 953+A1:2009,
EN ISO 11202: 2009, EN ISO 3746:2009, ČSN ISO 1819:1993, ČSN EN 60335-1 ed.2:2003
CAUTION - The installation of the boiler must always be carried out in accordance with a
prepared design. The boiler may only be installed by persons trained by the manufacturer.
14. Selection and method of connection of control and heating-
system elements
The boilers are delivered to the user with the basic control of the boiler output, which complies with
the requirements for the heating comfort and safety. The control ensures the required output tempe-
rature of the boiler water (80-90°C). The boilers are equipped with a built-in thermostat controlling
the pump in the boiler circuit. The connection of these elements is indicated in the electric wiring dia-
gram. Each pump in the system must be controlled with a separate thermostat to avoid cooling of the
boiler at the return line below 65°C. If the boiler is installed without a storage or equalizing tank, the
pump in the circuit of the heated building must be controlled by a separate thermostat or electronic con-
trol unit to only run when the pump in the boiler circuit is running. If you use two thermostats, either for
the control of one pump, set the thermostat that controls the pump in the circuit of the heated building
to the value of 80°C and the thermostat that controls the pump in the boiler circuit to the value of 75°C.
You can also control both the pumps with one thermostat at the same time. If there is very good spon-
taneous (gravity) circulation of water between the boiler and the system, which extends the time neces-
sary for the boiler to reach the required temperature, you can reduce the setting of the thermostat of the
boiler circuit pump to a lower temperature. The required water temperature for the building is always
set with the use of a three-way mixing valve. The mixing valve may be controlled manually or with an
electronic control unit, which will contribute to more comfortable and more economical operation of
the heating system. The way of connection of all the elements is always determined by the designer
in accordance with the specific conditions of the heating system. The electric installation related to
the sufficient equipment of the boilers with the above mentioned elements must be implemented by a
qualified person in accordance with valid ČSN EN standard. If you install the ACD01 electronic control
unit, follow the instructions in the operation manual of this unit. Connect this control unit in the boiler
in accordance with the electric wiring diagram in this manual. Never switch off the ACD01 electronic
control unit outside the heating season (with the main switch on the boiler)!
